The Great British Insulation Scheme (GBIS) is a government-backed initiative in the United Kingdom, designed to help households improve the energy efficiency of their homes by offering financial support for insulation measures. This scheme is part of the broader effort by the UK government to combat climate change, reduce carbon emissions, and help citizens lower their energy bills in an era where energy costs are rising. By making homes more energy-efficient, the GBIS helps to ensure that households, especially vulnerable and low-income groups, have access to warmer homes while simultaneously contributing to the UK’s net-zero carbon goals.
Introduced in 2023, GBIS builds upon previous government initiatives such as the Energy Company Obligation (ECO) but extends its reach by allowing more people, particularly middle-income households, to access the scheme. It is part of the government’s broader climate and sustainability strategy, which seeks to transform how the UK generates, consumes, and saves energy.
The GBIS covers properties in Great Britain where the Energy Performance Rating (EPC) is D to G, meaning that homes that are less energy-efficient qualify for insulation improvements. The scheme is available for homes with a council tax band of A to D in England and A to E in Scotland and Wales, ensuring that it reaches a wide demographic while focusing on properties most in need of energy efficiency upgrades.

Key Objectives of the GBIS
The GBIS has several key objectives:
- Energy Efficiency: One of the core goals of the scheme is to improve the energy efficiency of homes across the UK. By promoting insulation improvements, GBIS ensures that homes retain more heat during colder months, reducing the need for excessive heating and lowering overall energy consumption.
- Carbon Emission Reduction: As the UK moves toward its 2050 net-zero target, reducing emissions from homes is essential. By installing better insulation, homes can drastically cut down on heat loss, which in turn reduces the need for burning fossil fuels for heating.
- Financial Relief: Rising energy costs have put a strain on many households. By improving home insulation, the scheme helps households save money on their energy bills, which can be particularly beneficial for low- and middle-income households.
- Support for Vulnerable Households: The scheme specifically targets households that are vulnerable to fuel poverty. Insulating homes not only helps to keep energy bills down but also ensures that these households can maintain a healthy and comfortable living environment, especially during the colder months.
What the Great British Insulation Scheme Covers
The GBIS covers a variety of home insulation measures aimed at reducing energy consumption and improving the overall thermal efficiency of properties. The types of insulation measures that are included in the scheme are:
1. Loft Insulation: Loft or attic insulation is one of the most effective ways to prevent heat loss in a home. By adding insulation material in the loft space, homes can retain more warmth, reducing the need for constant heating.
2. Cavity Wall Insulation: Many homes, especially older properties, have uninsulated cavity walls, which can lead to significant heat loss. Cavity wall insulation involves filling the gap between the two layers of brickwork with insulating material, which helps reduce heat loss.
3. Solid Wall Insulation: For homes without cavity walls, solid wall insulation is available. This can be either external insulation (where an insulating layer is added to the outside of the property) or internal insulation (which adds insulation to the inside of walls).
4. Floor Insulation: Installing insulation under floorboards helps to reduce heat loss from the floor, particularly in older homes where floors are more prone to drafts and cold air ingress.
5. Draught Proofing: This measure involves sealing gaps around windows, doors, and other openings to reduce heat loss. Draught-proofing can significantly improve energy efficiency, especially in older homes.
6. Insulated Hot Water Cylinders and Pipe Insulation: These measures involve insulating water storage systems and pipes to reduce the amount of energy needed to heat water.
The scheme is designed to cater to a variety of properties, regardless of their size or structure. It can cover both standard homes and those with more complex insulation needs.
Benefits of the Great British Insulation Scheme
The GBIS offers a range of benefits for individuals, communities, and the environment:
1. Lower Energy Bills: One of the most immediate benefits of the scheme is the reduction in energy bills for households. Better-insulated homes require less heating during colder months, which leads to savings on gas and electricity.
2. Improved Home Comfort: Insulating a home can significantly improve comfort levels by maintaining consistent temperatures throughout the property. This is especially important during winter when heat retention can make a significant difference in living conditions.
3. Reduced Carbon Footprint: By cutting down on energy consumption, the scheme contributes to the UK’s efforts to reduce its carbon emissions. Insulated homes require less energy to maintain warmth, thus lowering the amount of carbon dioxide (CO2) released into the atmosphere.
4. Boost to Property Value: Energy-efficient homes are more attractive to potential buyers, and well-insulated properties often see an increase in market value. This means that, in the long term, households participating in the scheme may also benefit from higher property prices.
5. Healthier Living Conditions: Cold homes can exacerbate health problems, particularly for those with respiratory or cardiovascular conditions. By ensuring homes are warm and well-insulated, GBIS helps to create healthier living environments, reducing the risk of illness caused by cold and damp conditions.
6. Support for Low- and Middle-Income Households: Unlike previous schemes that focused mainly on low-income families, the GBIS extends its reach to include middle-income households, making insulation improvements more accessible to a wider range of people.
Who Can Apply for the Great British Insulation Scheme?
The GBIS is designed to be accessible to a wide range of households across the UK. However, there are some eligibility criteria to determine who can apply for and benefit from the scheme. The scheme is divided into two main groups:
1. Low-Income and Vulnerable Households: This group includes households that are considered vulnerable to fuel poverty. Households in this category often have members who are elderly, disabled, or have long-term health conditions that make them more susceptible to cold-related health issues. Those receiving certain benefits, such as Universal Credit, Pension Credit, or Disability Living Allowance, may also qualify under this category.
2. Middle-Income Households: A significant shift from previous schemes is the inclusion of middle-income households under the GBIS. Households that do not qualify for the low-income category but are still experiencing difficulties with high energy bills may be eligible for support. This is particularly important as energy prices continue to rise, placing financial pressure on a broader segment of the population.
In addition to these income-based criteria, properties must meet certain standards to qualify for the scheme. Specifically, only properties with an Energy Performance Rating of D to G can apply, meaning the least energy-efficient homes. Homes must fall under council tax bands A to D in England or A to E in Scotland and Wales, ensuring that support is directed toward households most likely to benefit from energy efficiency improvements.
The scheme is open to homeowners as well as private and social renters. However, private renters may need their landlord’s permission before insulation measures can be installed. Social landlords may also be eligible to apply on behalf of their tenants, ensuring that rental properties are adequately insulated.
How to Apply for the GBIS
Applying for the Great British Insulation Scheme is relatively straightforward. Households that believe they are eligible can apply through the following steps:
1. Initial Assessment: Interested parties can approach their energy supplier or a certified installer to assess their eligibility. Some energy suppliers may proactively contact customers who they believe could benefit from the scheme.
2. Energy Assessment: If eligible, the household will undergo an energy assessment to determine the specific insulation measures needed for the property. This assessment helps identify which types of insulation would be most beneficial and feasible for the home.
3. Installation: Once the energy assessment is complete, the insulation work is carried out by a certified installer. The work is typically funded either partially or fully by the scheme, depending on the household’s financial situation and the type of insulation being installed.
4. Completion and Benefits: After the insulation has been installed, households can immediately start benefiting from lower energy bills and improved home comfort.
Conclusion
The Great British Insulation Scheme (GBIS) is an essential initiative in the UK’s fight against climate change and the drive to create more energy-efficient homes. By providing financial support for insulation improvements, the scheme helps households reduce energy consumption, cut down on heating costs, and improve living conditions. With the inclusion of both low- and middle-income households, GBIS aims to make energy efficiency accessible to a wider range of people, ensuring that more homes across the UK are equipped to face rising energy costs and contribute to the nation’s carbon reduction goals. Whether through loft insulation, cavity wall insulation, or draught-proofing, GBIS is a key component in the UK’s journey toward a more sustainable and energy-efficient future.